在spring中,是支持单实例bean的循环引用(循环依赖)的,循环依赖,简单而言,就是A类中注入了B类,B类中注入了A类,首先贴出我的代码示例 @Component public class AddressVO { @Autowired private UserVO userVO; } @Component public class UserVO { @Autowired private AddressVO addressVO; public void test(){ System.out.p…
Shell for循环 Shell for循环的语法如下所示 for 变量 in 列表 do command1 command2 ... commandN done 举例: ..} do echo $i done 类C语言也是可以的 ; i<=; i ++)) do echo $i done Shell while循环 while command do Statement(s) to be executed if command is true done 举例: COUNTER= ] do CO…
